Understanding EOR Pricing: Flat Fee vs Percentage of Salary

Employer of record (EOR) providers price their service in one of two ways: a flat fee per employee per month, or a percentage of the employee's gross salary. The model matters, because for a senior, well-paid hire the difference between the two can be substantial, and because the headline fee is only part of what an employer actually pays. This guide explains both pricing models, the statutory and pass-through costs that sit on top of the fee, what drives the price, and how to compare quotes on a like-for-like basis.

The two EOR pricing models

EOR providers charge either a fixed monthly fee per employee or a percentage of the employee's gross salary. A flat fee is a set amount per employee per month, independent of what the person earns, so it is predictable and unaffected by pay rises or bonuses. A percentage model takes a share of gross salary, so the fee scales up and down with the employee's pay. Both cover the same underlying service, acting as the legal employer, running payroll, withholding tax, administering benefits, and carrying local compliance, so the difference is in how the cost behaves as salary changes, not in what is delivered.

The table below compares the two models on the dimensions that change an employer's total cost.

Dimension	Flat fee per employee	Percentage of salary
Predictability	Fixed amount each month; simple to budget and forecast	Varies with pay; the budget moves with every salary change
Behaviour as salaries rise	Stays flat through pay rises, bonuses, and promotions	Rises automatically with every increase and bonus
What drives the cost	Market complexity, role seniority, headcount, and contract length	The salary itself, on top of the same market and role factors
Usually cheaper for	Higher earners and roles with frequent pay rises	Lower-paid roles where a flat minimum would be relatively high
How to compare quotes	Confirm what the fee includes and what is billed separately	Confirm the percentage rate and the salary base it applies to

When flat-fee is cheaper, and when percentage is

The cheaper model depends almost entirely on the salary. For a high earner, a flat fee is usually cheaper, because a percentage of a large salary grows without limit while a fixed fee does not. For a lower-paid role, a percentage can work out lower than a relatively high flat minimum. The second factor is predictability: a flat fee makes budgeting simple and is unaffected by a pay rise, while a percentage fee rises automatically with every increase and every bonus. As a rule of thumb, the higher the salary and the more it varies, the more a flat fee favours the employer.

What sits on top of the fee

The EOR fee is never the whole cost, because the employer also pays the salary and the statutory employer costs on top. Gross salary is the largest component, followed by employer social-security or social-insurance contributions, mandatory benefits, and end-of-service or severance accruals, all of which vary by country. Where a role needs a visa, the immigration and medical costs are usually billed in addition, ideally at cost rather than marked up. A well-structured quote passes these statutory and third-party costs through transparently and charges its own margin only in the fee, so an employer can separate the provider's service charge from the unavoidable cost of employing in that market.

What actually drives the EOR fee

Beyond the salary, the EOR fee is driven by how hard the country is to operate in and how much the role demands. Market complexity is the biggest factor: a jurisdiction with intricate localisation rules, visa sponsorship, and strict payroll regimes costs more to administer than a simple one. Role seniority and whether immigration is involved raise the price, as visa sponsorship adds work and risk. Headcount and contract length pull the other way, because more employees and longer commitments typically earn better per-employee rates. A single hire in a complex, visa-requiring market sits at the expensive end, while a small team of local hires in a straightforward market sits at the lower end.

The hidden costs to check

The costs that surprise employers are usually the ones outside the headline fee. The most common is the foreign-exchange markup applied when payroll is funded in one currency and paid in another, which can quietly add to every cycle. Others include setup or onboarding charges, security deposits held against payroll, off-boarding or termination fees, and minimum contract terms. It is also worth confirming what the fee includes and what is billed separately, such as whether benefits administration, expense processing, and immigration support are bundled or charged on top. Two quotes with the same headline fee can land very differently once these are added.

How to compare EOR quotes

When weighing one EOR provider against another, the quotes should be compared on the total landed cost per employee, not on the headline fee. The like-for-like figure is the fee plus the statutory employer costs plus the pass-through costs for a specific role in a specific country, over the expected length of the engagement. Three questions cut through most of the variation: is the pricing flat or a percentage, and which is cheaper at this salary; are statutory and third-party costs passed through at cost or marked up; and what does the fee include versus bill separately, including the foreign-exchange treatment. Comparing on those terms shows the real cost difference, which a headline monthly fee on its own conceals.

Worked example

A like-for-like comparison shows how the same role can cost differently under each model. The figures below are illustrative round numbers, not market rates or any provider's pricing, and are used only to show the mechanism. Take one hire on a gross salary of 10,000 a month. Under a flat-fee quote, the service fee is a fixed 500 a month regardless of pay. Under a percentage quote at 8% of gross salary, the service fee is 800 a month. At this salary the flat fee is lower, and the gap widens at a pay rise to 12,000, where the flat fee stays at 500 while the percentage fee climbs to 960. The statutory employer costs and any pass-through costs are the same under both quotes, so the only difference being compared is the service fee.

Illustrative monthly figures	Flat-fee quote	Percentage quote (8% of gross)
Service fee at 10,000 salary	500 (fixed)	800
Service fee after rise to 12,000	500 (unchanged)	960
Statutory and pass-through costs	Same under both quotes	Same under both quotes
What the comparison turns on	Lower and stable as salary rises	Higher here and grows with every increase

Choosing a pricing model

The right pricing model follows from the salary, the predictability the employer wants, and the markets involved. A flat fee suits higher-paid roles and budget certainty, since it does not climb with salary; a percentage can suit lower-paid roles but rises with every increase. Whichever model is chosen, the decision should be made on the total cost of employing the person in that market, not on the fee alone, because the statutory costs and pass-throughs often outweigh the difference between the two models. For how an EOR employs, sponsors, and runs payroll across markets, see the Employer of Record service.

About Aspirock

Aspirock is an Employer of Record and payroll provider operating across 70+ countries, with six global offices and over 22 years of experience supporting more than 5,000 workers. Every client works with a named account team that owns the deployment end to end, so contracts, payroll, visas, and compliance filings in each market are handled by people accountable for the outcome. For employer-of-record and payroll support, see the Employer of Record service page.

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